Gas-regulator for x-ray tubes.



C. G. ROCHl GAS REGULATOR FOR )(-RAY TUBES.

APPLlcmoNSFlLED ocnz. 1915.

Patented May 9, 19H'.

CARL GSTAVE ROCH, OE PARIS, FRANCE.

GAS-:REGULATOR EUR X-RAY TUBES-3.

Specification @finitura Paten Application filed Ocoher 1915. Serial No. jo.

mwlival studvnl, rcsilluni il fil Awww, (Plilylfiu, Paris, Fifzunl'u, :i minimi nl' ilu; Republic uf'lunw` lmw in'vmml nun* for X-i'uy lniilis unil lilax :ippni'nlmp This I'Qgulatni Wiliuul', Capillary lulu` willi fr@ inwury mul incfimllllA ul gull nui of will/3V. flwregululni' win worn in :my puilinu fui lnu piupwm ul zulxniillng mail quantities nl' aix* nl' fus inln tlm interim' n1 Xmay bulbs, the wlmi fion lining x'muiiwl from time to time for infsuringlA wml wnrking of the bulbs.

Figura 1 n vertical section nl tlm :.lglpn rains, Fig. l shows a mniliiml cunlluitlun The apparatus chiefly miinprisels z; .splmi (fail tank llllell twwtliinls willi invii-uri: Through 'the tank n, tulipl 7; im -5 will unen at. both ends :ind efstzililisliing Qmnnlunif'u fion beuwen the Cvnti' 0 uff ille, Splufi'iv-il wink and the atmnplieru lulu; a. in welllml :it :l iighlz-anglefto 4tlui lulu: l at Y und mnninnniczllce: with tlm enll pnillun n nf tlu tube 5. :nul with tliel intel-iur nf ilu: lnill) f producing 'Rocntgew rays.

The purlion cl," u. thu tulle wliiflx is welded to llntnlie 0 und is slglilly lupvring. is illvd with :in Qxveeilingly lim: uml minpafrt porfin# nmlei'izsl Strongly mllnrrlng m the Walls, prvfciriluly Cant luelwwn lln will wallf su ng *m wint in llw inui'inz'." l'ui tlm puri ul 1li-'winning any nl :ff'ul'y .from passing; thi'uugrli i'lnx tulle ff. lnlu i'fnmxnlng permeablu to tlwy air. Fui' this' puipuxv. bum illust, m' vll'lvulilelrpilin, n1' n pulmxfi wnunl, malle allows gfrzlirn ui pmu/nu, puiwlun. mr walliling nii utllfi lum( wnwn nnilmizil may be ubwl The u'm; -fis l-u pi'rwillwl in ik mitral imi'liun with :i nifl-nml cimmbci' 11 lisninjj lli'af Sinin nl, :s llnulllu cnnu unl cui'imining n (minpunt plug wlxlf'li. pmens immuni-5' l'fnn gman lm fusils permvalllv u lw nir. This flug inni* lm made of angl nl lille nieilmi- :l izmlnnf-ll in curmectiun with llw 'plug uml in liv pm, tion a of tube a,

The tank is px'ovislfl un ih iivmnl'wence with waning/s or bizinlgliw w, nl' uncal Shan. :winngml in siufli :i uumlvei' lnl. the position of tlm apparatus, :it

une nl li Fig. L.

tube o', so as to uncover completely the end u" of the porous material. Moreover, one of the branches a', preferably that arrangedv in line with the tube u', or a special branch, is arranged to receive a cap Iz, of metal or ot' any other material; provided ywith a screw-threaded branch. lVith the said branch engages a rod d; also screw-thread ed; of iron or any other desired material, terminating at one end in a widened portion which may or mayu not be covered with rubber. This rod finally terminates outside in a milled button c enabling it to be easily turned. yrl`hebranch s provided with thisv device; closed, like the others, by a plug which rei'ulers it permeable to the air, but not permeable to mercury.

The working 'of the modified construe tions is as followsx- -By screwing home the rod Z by means of its button e, the end a of the porous material completely closed. On the nod being slightly unscrewed, the und ,ff will uncover the orifice a, and, by reguiuting the distance separating the end d from the branch fri, a more or less large ipmriitv of air is admitted at will into the apymiatusL The advantages ot' this arrangemeut are as jfollows:--bsolute safety at rest. in the event ot' accir'lental blowing in air through the tube I); extremely accu' rate regulation of the output, enabling the regulator to be adaptedl to any pattern of apparatus and to any dimensions of tubes or valves. p

Having now particularly described and ascertained the nature of my said invention and in what manner the saine is to be peri', fornied, l deviare that what l claim is I l. A gas regulatoafor X-ray tubes and the lilwfcag'mble of working in any position und comprising a v'xlfierical rmieptacle filled tivo-*thirds full ot' mercury; a gas feed tube having its opening disposed approximately at the center of' said receptacle.y said tube having a plug; a connecting tube leading from the source of X-rays to said receptar-lci and likewise having its opening disposed aiiprommately at the center of thelatter und provided with a plug; and

branches or nipples on said receptacle pro- I vided 1with plugs, allof `the various plugs being composed of a porous material which 1s impermeable tomereury'but permeable 2. A gas regulator for Xfray tubes and the like, capable of Workin in any position and comprising'a sphericareeeptacle filled two-thirds full of mercury; a. gas feed tube having its opening disposed approximately at the center of said receptacle, said tube having a plug; a lconnecting tube leading from the lsource of X-rays to said receptacle, andilikewise having its opening disposed approximately at' the center of the latter and provided with a plu the two tubes arranged at' a right angie to each other; an adjustable closure for' the con'- necting tube; and branches or nipples on said receptacle provided with ,plugsyall of the various lugs being composed of a porous material) `which is impermeable to mer cui-y but permeable to gas. f

3. A gas regulator for X-ray, tubesn and the like, t'capable of workin inany position and comprising a spherial receptacle filled two-thirds full of mercury; a gas feed tube having its opening disposed approximately at the center of said receptacle,A said tube having a plug; a connecting tube. leading from the source of X-rays to said receptacle, and likewise having its opening disposed approximately at `the center of the latter and provided With a plu the two tubes arranged at a right ange to each other; an adjustable plosure for the con`- necting tube; an operating rod for said closure having a linger-piece connected to it; and branches or nipples on.said receptacle provided with plugs, all of the various plugs being composed of a porous material" which is impermeable' to mercury but per-` meable to gas.

Dated this 29th day of September 1915. In testimony whereof I have signed this specification 1n thepresence of two sub-A' 

